More drm-misc stuff for 4.12:

- drm_platform removal from Laurent
- more dw-hdmi bridge driver updates (Laurent, Kieran, Neil)
- more header cleanup and documentation
- more drm_debugs_remove_files removal (Noralf)
- minor qxl updates (Gerd)
- edp crc support in helper + analogix_dp (Tomeu) for more igt
  testing!
- old/new iterator roll-out (Maarten)
- new bridge drivers: lvds (Laurent), megachips-something (Peter
  Senna)
Merge branch 'drm/next/platform' of git://linuxtv.org/pinchartl/media into drm-misc-next

Merge Laurent's drm_platform removal code. Only conflict is with the
drm_pci.h extraction, which allows me to fix up the misplayed
drm_platform_init fumble that 0day and Stephen Rothwell reported.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>